At a no AC call friday. The customer seemed friendly at first(he was a new customer).I diagnosed problem quickly as a bad condenser fan motor. I happened to have one in my truck. Before i went to get it i decided to ask for a glass of water first,it was 92F outside. He looked at me in disgust and said"you'll get your water after my AC is running!' I just looked at him in shock. At this point he didnt know i had the motor in my truck. So i said" The condenser fan motor is burnt out and unfortunately i wont have one until monday" He was pissed and i left. I felt good of what i did and felt it was justified. Any thoughts?